Editing Compact fluorescent lamp (section)

===Outdoor use===
[[File:A CFL Light Bulb on a wall in a black lantern in South Carolina.PNG|thumb|upright|A CFL used outside of a building]]
CFLs are generally not designed or rated for outdoor use and some will not start in cold weather. CFLs are available with cold-weather ballasts, which may be rated to as low as −28.8&nbsp;°C (−20&nbsp;°F).<ref>{{cite web|url=http://www.cleanairpartnership.org/cleanairguide/terms_definitions.htm|title=Coming to Terms with Energy Efficiency and the Environment|publisher=The Clean Air Partnership|archive-url=https://web.archive.org/web/20071011064253/http://cleanairpartnership.org/cleanairguide/terms_definitions.htm|archive-date=October 11, 2007}}</ref> Light output during the first few minutes of operation is limited at low temperatures before reaching full brightness.<ref>U.S. Dept. of Energy, Greening Federal Facilities, 2nd Edition, '[http://www1.eere.energy.gov/femp/pdfs/29267-5.4.3.pdf Compact Fluorescent Lighting] {{webarchive |url=https://web.archive.org/web/20110511132153/http://www1.eere.energy.gov/femp/pdfs/29267-5.4.3.pdf |date=May 11, 2011}}'. DOE/GO=102001-1165 page 87. Retrieved 22 February 2007. "Even when low-temperature ballasts are used, lamps will not reach full brightness for several minutes in cold weather."</ref> [[Cold-cathode fluorescent lamp|Cold-cathode CFL]]s will start and perform in a wide range of temperatures due to their different design.